Answer:
a) The population under consideration in the data set is "adults in the United States".
b) The parameter being estimated is the proportion of adults in the U.S. that could not cover a $400 unexpected expense without borrowing money or going into debt.
c) The point estimate for the parameter of the population is p-hat.
d) The standard deviation of the sampling distribution
e)
f) Yes, 50% is a value not probable if the estimations are right.
g) No, it does not change.
Step-by-step explanation:
f) We can calculate the plausability of the value 50% with our estimations.
The P-value of a proportion of 50% is very low, so the value should surprise.
g) We re-calculate with p=0.4
Answer:
60°
Step-by-step explanation:
Through point B draw a line m || AY || CX and take two points say E and F on left and right side of point B respectively.
Therefore,
m∠FBC + m∠XCB = 180°..(By interior angle property)
m∠FBC + 130° = 180°
m∠FBC = 180° - 130°
m∠FBC = 50°....(1)
Next,
m∠ABF = m∠BAY... (Alternate angles)
m∠ABC + m∠FBC = 110°
(since, m∠ABF = m∠ABC + m∠FBC)
m∠ABC + 50° = 110° (From equation 1)
m∠ABC = 110° - 50°
0.35 cups/hour
To be able to determine the rate at which the water is leaking from the pipe with the information given, you have to divide the number of cups by the number of hours in which they were collected:
12 cups/34 hours= 0.35 cups/hour
According to this, the answer is that the rate at which the water is leaking from the pipe is 0.35 cups/hour.
Hope this helps!!
